1. Anitschkow, N., Verh. d. Dtsch. pathol. Ges., 23. Tagung Wiesbaden1928.
2. Chuma, Virchows Arch.242 (1923).
3. Hannsen, Klin. Mbl. Augenheilk.70 (1923).
4. Kawamura, Nissin Igaku7, Nr 1; zit. beiWada. Trans. jap. path. Soc.16 (1926).
5. Koboschi undNakanoin, Trans. jap. path. Soc.16 (1926).